Catheter Clip Stabilization for Radial Access
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Radial artery access for percutaneous vascular and cardiac interventions requires stabilization of catheters due to vascular tortuosities, which existing methods like using towels fail to reliably maintain, leading to catheter shifting and increased procedural time or patient trauma.
Innovation Solution
A catheter clip with a rigid or semi-rigid frame and inner gripping membrane that selectively opens and closes around the catheter to prevent rotational and proximal/distal movement, featuring a hinge mechanism and adhesive base for secure attachment to the patient's skin or drape, allowing for adjustable torque resistance without crimping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a towel or other object is placed across the external portion of the catheter to hold it in position, then the catheter can be stabilized during the procedure, but this technique is unreliable and may allow the catheter to move after placement
Solution Approach 1:
The catheter retention device acts as an intermediary between the catheter and the patient's body/skin. It features a body portion that contacts the catheter externally and a distal portion that extends into the catheter lumen to engage the inner wall, creating a reliable mechanical connection that prevents catheter movement without directly tying the catheter to the skin.
Solution Approach 2:
The retention device is inserted into the catheter lumen and then deployed outward, with the distal portion engaging the inner wall from the inside while the body portion rests externally. This nested configuration ensures the catheter cannot move without moving the retention device, creating a reliable fixed connection.
2Stability of the object's composition
If continuous torque on the catheter is maintained to prevent shifting through acute bends, then the catheter remains in position, but this requires constant operator intervention and may cause increased trauma during repositioning
Solution Approach 1:
The retention device is deployed at the insertion site before the catheter is advanced through the vascular system. Once deployed, it automatically provides continuous stabilization and torque resistance throughout the procedure, eliminating the need for ongoing operator intervention and preventing catheter movement that would cause trauma during repositioning.
Solution Approach 2:
The retention device is self-retaining through its mechanical design: the distal portion engages the catheter inner wall while the body portion rests externally, creating a self-locking mechanism that automatically maintains catheter position and resists torque without requiring continuous external force or adjustment by the operator.
3Manufacturing precision
If the catheter is repositioned to correct shifting, then the catheter can be placed correctly, but this increases procedural time and may involve increased trauma for the patient
Solution Approach 1:
The retention device is deployed and secured to the catheter before the catheter is fully positioned in the vasculature. This preliminary securing action ensures the catheter cannot shift or move from its placement position, eliminating the need for time-consuming repositioning procedures and ensuring precise catheter placement is maintained throughout the intervention.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The catheter clip effectively stabilizes catheters during procedures, reducing the risk of catheter movement and associated complications, enabling more efficient interventions with reduced trauma and quicker patient recovery.
Implementation Method 1
featuring a hinge mechanism and adhesive base for secure attachment to the patient's skin or drape
Data Source
AI summary
Embodiments provide catheter retention devices such as catheter clips that may be used to stabilize a vascular access catheter during a procedure, particularly a radial access procedure. The catheter clips may include a frame that includes a first frame member portion, a second frame member portion hingeably coupled to the first frame member portion, the first and second frame member portions defining a first aperture therebetween, and a base member extending from the second frame member; and an inner gripping membrane that includes a first inner gripping membrane portion coupled to the first frame member portion and a second inner gripping portion coupled to the second frame member portion, wherein the first and second inner gripping portions define a second aperture within the first aperture.